The Cold Dark Light | Highschool DxD

Y/N Lucifer,Descendant of Lucifer,Brother of Valeria the White Dragon Empress and the only Devil in existence who can wield light without being burned.Due to his strong ability to use light he was families prized jewel.His sister possessed a Longinus,their father being scared bullied her.One night Y/N caught her running away and decided he would join her.They were recruited by Azazel and trained under him for many years.While Valeria decided to go off and do her own things.Y/N a Devil trained by the head of Fallen Angels,decides to step foot in kouh.What will happen? Who knows? (Except for me)